ANALYSIS TYPE

The user can select the type of analysis output by clicking on the pull-down menu There are two types of analysis output:

 

1.        LS-DYNA INPUT FILE

This function outputs the setup in LS-DYNA input deck.

 

2.        JOB SUBMITTER

This function outputs the setup in LS-DYNA input deck and submits simulation to Job Submitter illustrated in Figure 15.1.2. The user can manage the job in Job Submitter.

Figure 15.1.2  Job Submitter GUI

 

NOTE: If the calculation time set by the user does not match with the defined termination time of curve, the program will automatically pop up a prompt dialog box illustrated in Figure 15.1.3 to ask if the user wants to reset the termination time. Clicking YES, the program will automatically set termination time of tool motion curve as the calculation termination time. Clicking NO, the program will not change the current termination time.

 

Since the termination time is same as the one of tool motion curve, this dialog box does not appear during normal setup. If the program pops up this dialog box, the user has to check the correctness of setup process very carefully.

Figure 15.1.3  Dynaform question dialog box

 

CONTROL PARAMETERS

Set the control parameters for running a stamping simulation using LS-DYNA. The user can edit the parameters by clicking on the CONTROL PARAMETERS button from the ANALYSIS dialog box. The DYNA3D CONTROL PARAMETER dialog box illustrated in Figure 15.1.4 is displayed.

Figure 15.1.4  Control Parameters dialog box

 

TERMINATION TIME

Determine by duration of motion curve. The user may manually define termination time.

TIMESTEP (DT2MS)

Time step size for mass scaled solutions. Please refer to keyword *CONTROL_TIME_STEP described in LS-DYNA User’s Manual.

PARALLEL (NCPU)

Allow the user to define the number of processors used to perform stamping simulation.  This function requires PCs equipped with multiple processors, a shared memory (parallel process) version of the LS-DYNA solver, and valid license. Please refer to keyword *CONTROL_PARELLEL described in LS-DYNA User’s Manual.

STATES IN D3PLOT (DPLTC)

This setting allows the user to define the number of evenly spaced frames of data, displayed and animated in eta/POST. Please refer to keyword *DATABASE_BINARY_D3PLOT described in LS-DYNA User’s Manual.

ADVANCED OPTIONS

 

HOURGLASS (IHQ)

Type of hourglass viscosity. Please refer to keyword *CONTROL_HOURGLASS described in LS-DYNA User’s Manual.

CONTACT (SLSFAC)

Scale factor for sliding interface penalties. Please refer to keyword *CONTROL_CONTACT described in LS-DYNA User’s Manual.

CONTACT (ISLCHK)

Initial penetration check in the contact surfaces. Please refer to keyword *CONTROL_CONTACT described in LS-DYNA User’s Manual.

CONTACT (SHLTHK)

Shell thickness considered in SURFACE-TO-SURFACE and NODE-TO-SURFACE contact options.  Please refer to keyword *CONTROL_CONTACT described in LS-DYNA User’s Manual.

CONTACT (PENOPT)

Penalty stiffness value option. Please refer to keyword *CONTROL_CONTACT described in LS-DYNA User’s Manual.

TERMINATION (ENDMAS)

Percent change in the total mass for termination of calculation. Please refer to keyword *CONTROL_TERMINATION described in LS-DYNA User’s Manual.

INTEGRATION (MAXINT)

Number of shell integration points. Please refer to keyword *DATABASE_EXTENT_BINARY described in LS-DYNA User’s Manual.

OUTPUT TIMES (ENDTIM/DT)

Multiplier which determines cycle time, DT. Please refer to keyword *CONTROL_TERMINATION described in LS-DYNA User’s Manual.

ACCURACY STRESS (OSU)

Global flag for objective stress updates. Please refer to keyword * CONTROL_ACCURACY described in LS-DYNA User’s Manual.

ACURACY NODE (INN)

Invariant node numbering for shell elements. Please refer to keyword *CONTROL_ACCURACY described in LS-DYNA User’s Manual.

OK – Accept the control parameters.

DEFAULT - Reset all values to their default settings.

RESET - Restore to previously defined value.

ADVANCED - Display advanced control parameters.

CANCEL – Abort dialog box.